· Private foundation
Yaffa Foundation Inc
Its FY2025 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2021–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- Under $10k15 grants · $37k
- $10k–50k29 grants · $395k
- $50k–250k6 grants · $565k
- $250k+2 grants · $662k
| Recipient | Amount |
|---|---|
| I TRI | $400,000 |
| PECONIC LAND TRUST INC | $262,000 |
| BPEACE | $150,000 |
| SOUTH FORK BAKERY FOR THE SPECIAL NEEDS LLC | $100,000 |
| STONY BROOK FOUNDATION | $100,000 |
| BELLA ABZUG LEADERSHIP INSTITUTE | $80,000 |
| HEART OF THE HAMPTON | $75,000 |
| THE RETREAT | $60,000 |
| THE CHURCH | $35,000 |
| PROJECT MOST INC | $30,000 |
| ANIMAL RESCUE FUND OF THE HAMPTONS | $25,000 |
| SUNY COBLESKILL FOUNDATION | $20,000 |
| SAG HARBOR CINEMA ARTS CENTER | $20,000 |
| FAMILY SERVICE LEAGUE | $20,000 |
| OLA OF EASTERN LONG ISLAND | $18,500 |
Do your dollars go where the need is?
Each grant placed by the hardship in its grantee’s ZIP, then read against the area’s typical level.
Your human-services grants (FY21–25, $494k) land where the poverty rate runs at 8%, against an area that typically sits at 9%. 11% of those dollars go to grantees based in above-average-need neighborhoods. Your grants skew toward lower-need ZIPs.
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty linein the grantee’s ZIP, averaged from the tracts in that ZIP; grantee ZIP can differ from where services are delivered.
Which US states your grants reach
US grants placed by each grantee’s ZIP, which can differ from where services are actually delivered. Need from public data — U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA — shown as context about the area, never attributed to your giving.
Who you back again
Which organizations you funded more than once, and which you funded a single time. Each grantee is matched to its own filings.
And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +16% since the first grant, against -12% for the ones you funded once.
51 repeat relationships — 41 still active in FY2025, 10 since wound down; 11 grantees were first funded in FY2025 (too recent to call).
How the two cohorts compare
Organizations
Total granted
Median revenue growth · since first grant
Still filing today
New vs renewed · share of each year
In FY2025, 92% of grant dollars renewed an existing relationship; $130k went to new ones.
Where new relationships form · theme of each grantee’s first grant
First-time = a grantee’s first year in your filing window; renewed = funded in an earlier year too. As a portfolio matures the renewed share naturally climbs — once funded, an org stays “renewable” — so the signal is the years that buck it (a new-grantee intake wave). The earliest year is left-censored: relationships that predate the data read as “new.” Theme is the grantee’s IRS cause.
Backed again, and grew
- ITINSPIRATIONAL TRIATHLON RACING INTERNATIONAL CORP5× · 2021–2025 · $820k · revenue +22%
- OOOLA OF EASTERN LONG ISLAND INC4× · 2022–2025 · $343k · revenue +26%
- SBSTONY BROOK FOUNDATION INC4× · 2022–2025 · $250k · revenue +55%
Funded once
- NSNORTH SEA MARITIME CENTER INCone grant, 2023 · $400k · revenue -42% · 94% of their budget
- VOVARIOUS ORGANIZATIONS - DETAILS PROVIDED UPON REQUESTone grant, 2024 · $353k
- SHSAG HARBOR PARTNERSHIP INCone grant, 2022 · $100k · revenue -87%
Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.
The map has a center of gravity: the average direction from the rest of the sector toward the organizations the foundation funds — the shape of its giving. Scoring every nonprofit along that direction surfaces the ones that look most like the portfolio. These are the closest matchesthat aren’t grantees — a resemblance in what they say they do, not a recommendation.
Peconic Public Broadcasting is a public FM radio station located in Southampton, New York. The station services Long Island and coastal Connecticut and offers listeners both national and local programs.
To preserve, cultivate, and share historic sylvester manor.
The east hampton historical society serves the residents and visitors of east hampton by collecting, preserving, presenting, and interpreting the material, cultural, and economic heritage of the town and its surroundings.
The mission of the bridge hampton historical society is to inspire the documentation,preservation and interpretation of the history and cultural traditions of bridgehampton and its surrounding communities.
Preserving the ongoing heritage of the Town of Huntington
The Museum engages the community in exploring the diversity of our whaling heritage and its impacts to enrich and inform our lives.
The organization was formed to satisfy the need for safe, nurturing, low cost day care services for the pre-school children of working parents in the eastern townships of long island, new york.
The Museum's mission is to encourage and promote the appreciation of fine art to people in its surrounding communities and beyond. The Museum is dedicated to fostering a deeper understanding of the arts, with particular emphasis on the…
Providing quality materials and services, which fulfill the educational, information, cultural and recreational needs of the entire community in an atmosphere that is welcoming and respectful.
To create memorable guest experiences which promote actions to help save species, habitats, and the communities who share those same landscapes
The nantucket conservation foundation owns, protects, and stewards over 9,000 acres of land and coastal shoreline, conserves nantucket's rare and significant natural resources, and engages in impactful ecological research to inform…
To provide library services to the residents of the Bridgehampton and Sagaponack school districts.
For reference, the grantee most central to the portfolio’s shape is The Southampton Fresh Air Home and the most unlike its peers is Inspirational Triathlon Racing International Corp. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
For each theme you fund, this compares how the sector’s money is shifting with how your own giving is shifting.
Sector change and giving change are each shown relative to their own range, growing (right) or shrinking (left); both normalized, so inflation isn’t mistaken for growth.
Your grantees are a median of 23 years old; the field is 18. You back the established end — and your money leans older still.
The field is 19% startups (under 5 years old) — 0% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 10% of the field you don’t fund.
Age = years since IRS exemption (a founding proxy). “Closed” = auto-revocation for 3 years of non-filing — a floor on closure, not proof, and bigger established orgs lapse least. Association, not causation.
48 grantees tracked through their own filings, 2017–2025.
Each one resolved to its own IRS returns and tracked year by year — your grant beside their revenue from every source. Association, dated; never a causal claim.
Counted here: distinct organizations you funded across 2017–2025, not grant rows in a single year — so this will not match the grant count on the cover. 48 of the 79 grantees resolved in that span have returns of their own we could reconcile; the rest are funded organizations whose filings we could not track year by year.
Where your money sits — by cause, then by grantee
Each org by its size and your share of it — top-left is where you’re load-bearing
Go grantee by grantee — a decade per org, and how each moved after you funded them
A decade per grantee — revenue shaded, your grants as bars, all rows on one timeline.
- Who funds PECONIC LAND TRUST INC ↗
- Who funds INSPIRATIONAL TRIATHLON RACING INTERNATIONAL CORP ↗
- Who funds NORTH SEA MARITIME CENTER INC ↗
- Who funds OLA OF EASTERN LONG ISLAND INC ↗
- Who funds THE BELLA ABZUG LEADERSHIP INSTITUTE INC ↗
- Who funds STONY BROOK FOUNDATION INC ↗
- Who funds East End Food Institute ↗
- Who funds Retreat Inc ↗
- Who funds SOUTH FORK BAKERY FOR THE SPECIAL NEEDS CORP ↗
- Who funds HEART OF THE HAMPTONS LTD ↗
- Who funds SOUTHAMPTON TOWN AQUATICS AND RECREATION CORPORATION ↗
- Who funds FAMILY SERVICE LEAGUE INC ↗
- Who funds SAG HARBOR PARTNERSHIP INC ↗
- Who funds PROJECT MOST INC ↗
- Who funds ANIMAL RESCUE FUND OF THE HAMPTONS INC ↗
- Who funds PECONIC COMMUNITY SCHOOL ↗
- Who funds WORKING FOR WOMEN INC ↗
- Who funds THE SOUTHAMPTON FRESH AIR HOME ↗
- Who funds East End Hospice Inc ↗
- Who funds AKASHINGA INC ↗
- Who funds SAG HARBOR CINEMA ARTS CENTER INC CO SUSAN MEAD ↗
- Who funds HAMPTONS COMMUNITY OUTREACH INC ↗
- Who funds SCOA INC ↗
- Who funds THE PARRISH ART MUSEUM INC ↗
- Who funds BAY STREET THEATRE FESTIVAL INC ↗
- Who funds THE ELLEN P HERMANSON FOUNDATION ↗
- Who funds SOUTHAMPTON HISTORY MUSEUM ↗
- Who funds THE HETRICK-MARTIN INSTITUTE INC ↗
- Who funds NORTH SEA FIRE DEPARTMENT INC ↗
- Who funds Hero Fund America Inc ↗
- Who funds FLYING POINT FOUNDATION FOR AUTISM ↗
The grantmakers whose grantees overlap with yours far more than size alone predicts. Each orbits closer the stronger the alignment; the arcs between them show where they also fund each other. Here it reads as a tightly interlocked camp — most of these funders back each other's grantees too.
Open a dossier: The New York Community Trust · Southampton Bath & Tennis Club Charitable Fund · Jewish Communal Fund · Halsey Family Foundation Inc · The Reba Judith Sandler Foundation Inc · Martin D & Jean Shafiroff Foundation · Stephenson Pope Babcock Foundation · Muriel F Siebert Foundation Inc · Albert a Arditti Foundation Inc · Thomas E Harvey & Cathleen P Black Foundation · The Fridolin Charitable Trust · The Riggio Foundation
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. A research starting point: overlap is association, not proof of shared intent.
Government reliance of your grantees
Every dot is one organization Yaffa Foundation Inc funds. Left–right is the share of its income from government; up–down is the share from you. Bigger dots raise more. Filter to federal or a single department — and drag the year to watch it move.
Government income is each org’s traced federal awards (USASpending — grants and contracts) plus state payments (open checkbooks) as a share of its total revenue (IRS Form 990); the self-reported government-grant line (990 line 1e) is carried for cross-check: a grantee that reports government grants we could not trace to a source is left off the chart rather than shown as receiving none. An association, not a claim that your grant caused the public funding. Coverage is precision-first — a floor, not a census; state records exist for 9 states, so a grantee outside them shows no state figure (dimmed) rather than a false zero. Federal award amounts are obligations, which can span years, so a single-year share is indicative. 990 filings lag 12–24 months.
Warm introductions · Powered by PlinthPlus
How do I get to Yaffa Foundation Inc?
Find your warmest path to Yaffa Foundation Inc through trustees and officers whose names appear on both boards. Search for your organization and Plinth traces the shortest route it can evidence.
Each link is a name appearing on two organizations’ public IRS 990 filings, matched on that name and, where the filings support it, on location. A same-state match has geographic support, which is a second matching feature rather than confirmation that the two are one person; a cross-state one is the likeliest to be two people who share a name. Every hop shows its tier, low-confidence and distant paths are held back rather than guessed, and it is worth confirming the person before you use the introduction.